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Fix selecting between tab (or other control characters) in the UI

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It wasn't possible to select the position between two tab characters
with the mouse cursor in the UI. Don't handle characters with an unknown
width as combining.

Follow up to [0] which changed this for cursor motion.

[0]: bc51449ff1a8f2083c5b06998f1b448f184357ea
This commit is contained in:
Campbell Barton 2023-09-17 15:41:37 +10:00
parent 5ae99270c1
commit 0464b9fc58
1 changed files with 2 additions and 2 deletions
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4
source/blender/blenfont/intern/blf_font.cc
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@ -989,8 +989,8 @@ size_t blf_str_offset_from_cursor_position(FontBLF *font,
/* We are to the right of the string, so return position of null terminator. */
data.r_offset = BLI_strnlen(str, str_len);
}
else if (BLI_str_utf8_char_width(&str[data.r_offset]) < 1) {
/* This is a combining character (or invalid), so move to previous visible valid char. */
else if (BLI_str_utf8_char_width(&str[data.r_offset]) == 0) {
/* This is a combining character, so move to previous visible valid char. */
int offset = int(data.r_offset);
BLI_str_cursor_step_prev_utf8(str, str_len, &offset);
data.r_offset = size_t(offset);